My favorite thing about Spelunky , our 2013 Game of the Year, is how endlessly replayable it is. Between randomly generated levels, Spelunky Death Roulette, and the daily challenge, there's always a reason to come back. If those modes aren't enough for you, an upcoming conversion mod will add character skins, music, levels, and enemies from Metroid.

The creator of the mod, Spelunky forum user joey4track , is still finishing the conversion and will release the mod when all four worlds have been remade. So far, two of the four worlds are complete. Here's what the mines look like so far:

The Spelunky Metroid Mod is a great example of what dedicated fans can do to extend the life of a game for a community. Samus can be skinned in either a couple of variations of the classic armored suit—or you can just go as Zero Suit Samus. Equally impressive is the inclusion of a music pack that replaces Spelunky's natural tones with Metroid's 16-bit era midi music that continues to haunt my childhood memories. joey4track says he'll release the mod once all four worlds are complete. In the meantime, you can get the mod's music pack at the Mossmouth forums .